public class Demo18 {
    public static void main(String[] args) throws InterruptedException {
        Thread t = new Thread(() -> {
           while(true){
               System.out.println("hello thread");
               try {
                   Thread.sleep(1000);
               } catch (InterruptedException e) {
                   throw new RuntimeException(e);
               }
           }
        });
        t.start();

        t.join();
    }
}
